MAX1834 High-Efficiency Step-Up Converter with Reverse Battery Protection in SOT23-6


MAX1834 High-Efficiency Step-Up Converter with Reverse Battery Protection in SOT23-6 RSS Sample
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Maxim Integrated
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The MAX1832-MAX1835 are high-efficiency step-up converters with complete reverse battery protection that protects the device and the load when the battery is reversed. They feature a built-in synchronous rectifier, which allows for over 90% efficiency and reduces size and cost by eliminating the need for an external Schottky diode.

These step-up converters operate from a +1.5V to +5.5V input voltage range and deliver up to 150mA of load current. The MAX1833EUT/MAX1835EUT (SOT devices) have a fixed 3.3V output voltage. The MAX1833ETT30 (TDFN device) has a fixed 3.0V output voltage. The MAX1832/MAX1834 have adjustable outputs from +2V to +5.5V. In shutdown, the MAX1832/MAX1833 connect the battery input to the voltage output, allowing the input battery to be used as a backup or real-time clock supply when the converter is off (see Selector Guide).

MAX183EUT devices are available in a miniature 6-pin SOT23 package. The MAX1833ETT30 is available in a 3mm x 3mm thin DFN package. The MAX1832EVKIT is available to speed designs.

* Reverse Battery Protection for DC-DC Converter and Load * Up to 90% Efficiency * No External Diode or FETs Needed * Internal Synchronous Rectifier * 4µA Quiescent Current * +1.5V to +5.5V Input Voltage Range * Accurate active-low SHDN Threshold for Low-Battery Cutoff * BATT Connected to OUT in Shutdown for Backup Power (MAX1832/MAX1833) * RST-bar Output (MAX1833/MAX1835) * Fixed 3.3V/3.0V Output Voltage * Adjustable Output Voltage (MAX1832/MAX1834) * Up to 150mA Output Current * Tiny 6-Pin SOT23 Package * Tiny 6-Pin Thin QFN Package (MAX1833ETT30)

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